A025146 (#1's in s(1),...,s(n)) - (#1's in r(1),...,r(n)), where s = A025142 and r = A025143.

1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, -1, 0, 1, 0, 1, 1, 0, 0, 0, -1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 2, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 2, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 2, 1, 1, 2, 1, 0, 1, 1, 1, 2, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 2, 1, 0, 1, 0

Offset: 1

Author

Clark Kimberling

Keywords

• sign

Links

• H. Harborth, Probleme und Lösungen, Mathematische Semesterberichte 44 (1997) 94.